St Mary's School Ascot
🇬🇧 Official data · 2025Ascot, South East SL5 9JF · Windsor and Maidenhead
#503 of 679 secondary schools in South East
#3159 of 4,090 nationally
About St Mary's School Ascot
St Mary's School Ascot is a independent secondary located in Ascot, in the Windsor and Maidenhead local authority of South East, England. It caters for Ages 11–18 and is a girls' school. In 2025 it enrolled 401 students. Fee-paying independent schools. Most do not publish Key Stage results in the government performance tables.
Its Success Index (England) is 25.9 out of 100, placing it in the lower 50% of secondary schools in England and 503rd of 679 ranked secondary schools in South East. Its strongest component is a level points per entry (96th percentile), and its weakest is grade 5+ in english & maths (6th percentile).
Other published figures: pupils on roll 401; capacity filled 99%; grade 4+ english & maths 0%; ebacc average points 1.69.
There are 15 schools in Ascot; St Mary's School Ascot ranks 10th of 13 scored schools there.
Success Index (England) breakdown
Each component is a percentile against secondary schools across England.
- KS2: reading, writing & maths expected standard (35%)–
- KS2: higher standard (20%)–
- KS2: reading progress (10%)–
- KS2: maths progress (10%)–
- Progress 8 (20%)–
- Attainment 8 (30%)33.9
- Grade 5+ in English & maths (15%)0%
- A level points per entry (10%)47.2
- Community advantage (fewer pupils on free school meals) (15%)–
The Success Index (England) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for St Mary's School Ascot by the official sources.
- Pupils on roll
- 401
- Number of pupils in the latest school census.
- Capacity filled
- 99%
- Pupils on roll as a share of the school's reported capacity.
- Attainment 8
- 33.9
- Average GCSE points across eight subjects.
- Grade 5+ English & maths
- 0%
- Share of pupils with a strong pass in both English and maths GCSE.
- Grade 4+ English & maths
- 0%
- Share of pupils with a standard pass in both English and maths GCSE.
- EBacc average points
- 1.69
- Average point score across the English Baccalaureate subjects.
- A level points per entry
- 47.2
- Average points per A level entry (A* = 60, E = 10).
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Schools near St Mary's School Ascot
Closest schools by straight-line distance, with their Success Index (England).
St Francis Catholic Primary School, South Ascot
Ascot · Academy primary · Ages 4–11
210 students · 433 m away
South Ascot Village Primary School
Ascot · Local authority primary · Ages 4–11
144 students · 1.2 km away
Charters School
Ascot · Academy secondary · Ages 11–18
1,707 students · 1.3 km away
St Michael's CofE Primary School, Sunninghill
Ascot · Local authority primary · Ages 5–11
194 students · 1.4 km away
St George's School
Ascot · Independent secondary · Ages 11–19
208 students · 1.6 km away
The Marist School
Ascot · Independent all-through · Ages 2–18
401 students · 1.7 km away
Sunningdale School
Ascot · Independent all-through · Ages 7–14
98 students · 2.0 km away
Windlesham Village Infant School
Windlesham · Academy primary · Ages 4–7
68 students · 2.4 km away
Holy Trinity CofE Primary School, Sunningdale
Ascot · Local authority primary · Ages 4–11
211 students · 2.5 km away
Hall Grove School
Bagshot · Independent all-through · Ages 3–16
451 students · 2.8 km away
Similar schools
Independent secondary schools in South East with a comparable Pupils on roll.
The Marist School
Ascot · Independent all-through · Ages 2–18
401 students
Rochester Independent College
Rochester · Independent secondary · Ages 11–21
401 students
Brighton Girls GDST
Brighton · Independent all-through · Ages 3–18
405 students
Mayville High School
Southsea · Independent all-through · Ages 2–16
405 students
Beachborough School
Brackley · Independent all-through · Ages 2–13
407 students
Pangbourne College
Reading · Independent secondary · Ages 11–19
393 students
Frequently asked questions
Is St Mary's School Ascot a good school?
St Mary's School Ascot has a Success Index (England) of 25.9 out of 100 (Lower 50% of secondary schools in England) and ranks #503 of 679 in South East. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does St Mary's School Ascot rank in South East?
St Mary's School Ascot ranks #503 of 679 secondary schools in South East and #3159 of 4,090 nationally on the Success Index (England) (2025 data).
How many students attend St Mary's School Ascot?
St Mary's School Ascot had 401 students in 2025.
Is St Mary's School Ascot a primary school or a secondary school?
St Mary's School Ascot is classified as a secondary covering Ages 11–18. It is a independent school.
What other schools are near St Mary's School Ascot?
There are 10 schools within 15 km of St Mary's School Ascot; they are listed on this page with their Success Index (England) and distance, and can be compared side by side.